Reactions, accuracy and response complexity of numerical typing on touch screens
Reactions, accuracy and response complexity of numerical typing on touch screens
复制标题
在触摸屏上输入数字的反应、准确性和响应复杂性
作者：
Cheng;Changxu Wu
触摸屏如今很流行，可以在公共售货亭、工业控制面板和个人移动设备上看到。数字打字是触摸屏上经常执行的一项任务，但这项任务在触摸屏上容易受到人为错误和反应缓慢的影响。这项研究旨在通过消除混淆问题，在数字打字环境中发现触摸屏与标准物理键盘的内在差异。此外，还研究了精确视觉反馈和数字分型的紧迫性的影响。结果表明，触摸屏和物理键盘一样准确，但触摸屏上的反应确实执行得很慢，这从运动前反应时间和反应时间两个方面都可以看出。提供精确的视觉反馈会导致更多的错误，并且在反应时间上没有发现设备与紧迫度之间的交互作用。为了提高触摸屏的可用性，设计师应该更多地关注降低响应的复杂性，并谨慎使用视觉反馈。从业者摘要：这项研究显示，触摸屏上的反应较慢涉及到更复杂的人类认知，以形成运动反应。应注意适当地设计精确的视觉反馈，以避免分心或视觉资源竞争，以提高人在触摸屏上的表现。
Touch screens are popular nowadays as seen on public kiosks, industrial control panels and personal mobile devices. Numerical typing is one frequent task performed on touch screens, but this task on touch screen is subject to human errors and slow responses. This study aims to find innate differences of touch screens from standard physical keypads in the context of numerical typing by eliminating confounding issues. Effects of precise visual feedback and urgency of numerical typing were also investigated. The results showed that touch screens were as accurate as physical keyboards, but reactions were indeed executed slowly on touch screens as signified by both pre-motor reaction time and reaction time. Provision of precise visual feedback caused more errors, and the interaction between devices and urgency was not found on reaction time. To improve usability of touch screens, designers should focus more on reducing response complexity and be cautious about the use of visual feedback. Practitioner Summary: The study revealed that slower responses on touch screens involved more complex human cognition to formulate motor responses. Attention should be given to designing precise visual feedback appropriately so that distractions or visual resource competitions can be avoided to improve human performance on touch screens.